Improvement in fruit-jar fastenings



l. KUEBERLE.

Fruit-lar Fastenin'gs.

N0.]47,0l2 Patented Feb. 3, 1874.

im@ @www UNITED STATES PATENT EEICEo JOHN KOEBERLE, OF PHILADELPHIA,PENNSYLVANIA.

IMPROVEMENT IN FRUIT-JAR FASTENINGS.

Specification forming part of Letters Patent No. 147,012, dated February3, 1874); application led July 21, 1873.

To all lwhom it may concern:

of a core.

My invention has for its object an expeditious and cheap construction ofthe yoke by v' constructing its eye with inclines, which c011- neet witha coarse screw-thread on the central stem of the cover, as hereinafterfully described. Figure 1 is a vertical section ofthe cover A andclamping-yoke B. Fig. 2 is a perspective view of the yoke B.

Like letters of reference in both gnres indicate the same parts.

A is the cover of a fruit-jar, and B a clamp ing-yoke, connected withthe central. screwstem a by means of the circnmterential inelines b andb on the upper and lower sides of its central vplate c. rIhere is ashort space at d, between the ends of the said inelines, to provide foran easy relief from the sand, as will be readily understood by founders.In order to give all the requisite strength to the connection of theclamp with the stem a., the thread e oi' the latter is constructed witha Very 4coarse pitch, as represented in Fig. 1.

I elaim as my invention- The clamping-yoke B, having circumferentialinclines b and b', in combination with the -central screw-stein a of thecover A, substantially in the manner and for the purpose above setforth.

JOHN KOEBERLE.

Vitnesses:

STEPHEN UsTICK, ANTON EDELE.

